87318527 has 16 divisors (see below), whose sum is σ = 91445760. Its totient is φ = 83321088.

The previous prime is 87318521. The next prime is 87318529. The reversal of 87318527 is 72581378.

It is a cyclic number.

It is not a de Polignac number, because 87318527 - 2¹⁴ = 87302143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87318521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487724 + ... + 487902.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^87318527 is an apocalyptic number.

87318527 is a deficient number, since it is larger than the sum of its proper divisors (4127233).

87318527 is a wasteful number, since it uses less digits than its factorization.

87318527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its digits is 94080, while the sum is 41.

The square root of 87318527 is about 9344.4382923748. The cubic root of 87318527 is about 443.6448730138.

The spelling of 87318527 in words is "eighty-seven million, three hundred eighteen thousand, five hundred twenty-seven".